Transmission control



Q July 14, 1925.

4 Sheets-Sheet 1 WITNESS:

July 14, 1925. Y 1.546.287

A. F. KOERBER TRANSMISSION CONTROL Filed April 10 v 1922 4 sheets-Sheet 5 July 14, 1925.

A. FL KOERBER TRANSMISSIQN cou'rnoz.

Filed April 10} 1922 4 Sheets-Sheet 4 Patented July 14, 1925.

UNI E STA ES ANTHONY r, KQEBBEB, F DETE ET, M GEIQAN' nANs IssIon common.

Application filed April 10, 1922.

To all whom it may concern:

Be it known that I, ANTHONY F. Konmnnz, a citizen of the United States, residing at Detroit, in the county of lVayne and State of Michigan have invented new and use ful Improvements in Transmission Controls, of which the following is a specification.

This invention relates to transmission means for transmitting movement from a drive member to a driven member so that the driven membercan be given different speeds, the general object of the invention being to provide simple and effective means for connectingthe driven member with the drive member in order to drive it at different speeds and to give it a reverse movement.

Another object of the inyention is to provide brake means for controlling the movements of the different parts so that the different speeds of the driven member can be secured.

This invention also consistsin certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail. reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a top plan view of the inven tion.

Figure 2 is a longitudinal sectional view taken on line 2.2 of Figure 1.

Figure 3 is a sectional view taken on line 3-3 of Figure 2 looking in the direction of the arrows.

Figure 4 H of the arrows. V

Figure 5 is a sectional view taken on line 55 of Figure 1 looking in the direction of ,the arrows.

I Figure 6 is a view of the modified form of the brake band to be used with the in is a sectional view taken on line termediate and low speed drums. c

Figure 7 is a detail view of one of the cam members for operating thebrakewbands. In these views 1 indicates the driveshatt or the crank shaft of the engine and 2 the driven member or sleeve which connected 2 d um 3 h h o t in th ri on dis s Figure l loo'king in the direction of Serial No. 551,1}0.

4 which cooperate with the discs 5 carried by the member 6 which is keyed to the shaft 1. As will be understood when the discs are moved into engagement witheach other the drum will be driven directly from the shaft but when the discs are "not in engagement the drum can move-independ ently of the shaft. 7 and 7- are gea rs'keyed to the shaft 1 and 8 and 8 are 'plates'rotatab-ly mounted on the shaft 1 and which are connected together by the brackets 9 ;a nd the shafts 1,0. Shafts lOf w hi'ch are carr ed by the plates 8 and 8", carry gears 11 which mesh with the gear '7" andwith a ring gear 12 carried a drum This druin 13 is rotatab ly mountecl on a sleeve 14 which is rotatably mounted on shaft 1 'a nd is co nnected with theplate 8 'and thedrum so that drum 3 will rotate with the violates. Gears 7 15 are arranged on the shafts 1 0 whlch are carried been plates 8 and 8, said gears meshing with the gear 7 and the ring gear 16 which is entirety a arisen and said gears 15 have small gears ismsnected therewith which mesh with gear 19 which is secured to a sleeve 20nd admin 21, sleeve 20 being rotatacbly mounted on the shaft 1 and the drum" 1'? rotatably mounted on said sleeve. "Each of the drums 13, and 21 is providedwith a brakelband '22 so that saiddrums can be held against movement by applying the brakes. When drum is held againstmovement by its brake the gears 11 are caused to t vel ar un he s e? 2 0 t tth pl es r1 tate and asthe drum '3-is oorincted'with the P at th cla m ll a o w s a thus the member ,2 will be no ated fronrthe drive ntermediate speed.

s a t at en a 49 p d i desired the riiinl i d estnst m nt so tha hie alrs 15 will travel around ,theg r t is LO move ent wi l h inn-an t t mem r 2 throu h d i e 3 an t p a s.- e m m r i to "b s r I a r se m vem n t ram 21 i "he ag in m em n so that th fee rsl 'v be caused to travel around gealr li) and thus rotate drum 3 and the plates alre- W dire t o wh t membe 2fi sw be driven at a high speed or at the same speed as shaft 1 is revol v ing the member 2 is connected directly with said shaft' hy means of the clutch discs A and 5 which connect the Bto said shaft 1.

The .swn qt ies was a annea s follows: Ashaft 25 is provided with a bevel pinion 26 which engages a bevel gear 27 to which is secured the arm 28. This arm is connected by link 29 with a manually operating part so that the gear 27 can be given nearly a complete revolution. The shaft 25 has secured thereto the wheels 28 which are each provided with a recess 29 in'which is located a'toothed sector 30 which iseccent-rically pivoted to the wheel and in one position will engage one wall of the recess with its teeth concentric to the circumference' of the wheel so that the teeth will engage a sector 31, but when the wheel 28 is moved in an opposite direction the sector 30 will move into the recess 29 so that its teeth cannot engage the sector 31. The sectors 31 are each connected with an "arm 32 and this arm is connected by the links 33 with the ears 34 on the cam members 35, said cam members bemgsecured to the brake bands 22 of the drums 13a-nd is provided with teeth on a part of itsperiphery, the majorpart of the periphery being smooth. A wheel41is mounted on shaft 42,said wheel having teeth 43 on'the major part of its periphery for engaging the teeth 40, said wheeel 41 alsohaving a projecting partr44 for engaging the smooth .part of the periphery of wheel 39 to prevent. movement of wheel 41 until. the

teeth 40 come-into engagement *with the teeth 43. when said wheel 41 will be rotated.

Shaft 42,, carries alarge gear 45 which meshes with the gear 46 whichis fastened tosha-ft47, having a right and left worm thread; .This worm will allow the lever48 to move backward so as to release the-spring 49 which is located on member. 2 and the expansion of this spring will forcethe clutch discs .4 and 5-into engagement to connect drum 3 directly with shaftl. When shaft 25 is given a reverse movement the gear will like.

The brake: bands 22- for the intermediate .and flow speed drums should be provided with tension springs so as to allow the sec tors operated therein to turn without jamming in case the brake bands should be set too tight. These brake bands are therefore constructed of inner rings 51 and outer rings 52 the tension springs being shown at 53, and these springs are located on the bolts 54 which a.r e secured to the inner ring and pass through openings in the outer ring. The outer ring will engage theheads of these bolts and thus force-the inner ring away from the drum regardlessof the tension of the springs. The bolts may be provided with nuts between the springs and the inner ring so that the springs may be tensioned to take up. wear of the brake lining.

From the above it will be seen that the gears are in constant mesh and that all the speeds are controlled from, a single lever or handle without the necessity of a clutchfor shifting from one speed to another.

It is thought fromthe foregoing description that the advantages and novelfeatures of my invention will be readilyapparent.

- I desire it to be understood that I may make changes inthe construction and in the combination and arrangement ofthe several parts, provided that such changes fallwithin thescope of the appended claims. I

l/VhatIclaimis:

1. Transmission means of the class. .described comprising a drive shaft, a driven member, a clutch drum'connected withv the driven member, friction discs for connecting the drum-directly with the drive shaft, intermediate and low speed gears on the drive shaft, a cage rotatably mounted on the shaft and connected with the drum, a pair of drums, ring gears carried thereby and meshing with the gears of the cage, brake meansforsaid drums, a shaft, manually operated means for rotating the same, wheels on the shaft, eccentrically arranged sectors in .said wheels, apair-of sectors arranged to be engaged by the sectors @inthe wheels when saidwheels are rotatedinone direction and means for operating the brake means by the movement ofsaidsectors.

2. Transmission means of the class de scribed comprising a drive shaft, a driven member, aclutch drum connected. With the driven member, friction discs for connecting the drum directly with the drive. shaft, ,in-

termediate andlow speed. gears on the drive shaft, a cage rotatably mounted on thef'shaft and connected with the drum, a pairrof drums, ring gears carried thereby and-meshing with the gears of the cage,-brake means for said drums, a shaft,.manually:operated means for rotating'the same, wheels on the shaft, eccentrically arranged. sectors in said wheels, a pair of sectors arranged to be engaged by the sectors in the wheels when said wheels arerotated in one direction and means for operating the brake means by the movement of said. sectors, such means 0011- sisting of cam members connected with the brake bands and means for operating the cam members by movement of the sectors.

3. Transmission means of the class de scribed comprising a drive shaft, a driven member, a clutch drum connected with the driven member, clutch discs for connecting the drum directly with the shaft, means for driving the drum at speeds slower than that of the shaft, a spring for forcing the clutch discs into engagement with each other, a lever for contracting the spring, a screw shaft for operatlng the lever, a pinion on the screw shaft, a second shaft, a

gear thereon meshing with the pinion, a r0- 1 tatable shaft, means for rotating the same and gears connecting the last mentioned shaft to the second shaft for giving said second shaft a partial rotation during a movement of the manually operated shaft and holding said second shaft stationary for the remainder of the movement of the manually operated shaft.

In testimony whereof I afiix my signature.

ANTHONY F. KOERBER. 

